Syntheses and properties of fluorinated carbon materials

Influence of oxyfluorination on activated carbon nanofibers for CO2storage

“…After oxyfluorination, the C(5) and C(6) components were observed in OFACF-1, OFACF-2, and OFACF-3 samples at 289.3 and 290.5 eV, corresponding to semi-covalent and covalent carbon-fluorine, respectively. All of these results are in accord with those from other studies [19,21,[27][28][29][33][34][35]. The concentration of C(3) and C(4) increased as the O 2 to F 2 ratio increased in the gas mixture, whereas the ratio only decreased in the OFACF-3 sample because there was insufficient fluorine gas to react with studies [27][28][29].…”

“…Surface modification is able to change this interaction, and numerous surface modification methods have been published in the literature. Of these methods, fluorination is one of the most effective methods for modifing carbon surfaces [18][19][20][21]. Because fluorine gas has a strong reactivity, it can easily react with surface carbon, even at room temperature.…”

Insights on the reactivity of ordered porous carbons exposed to different fluorinating agents and conditions

“…It is worth mentioning that studies concerning the fluorination of porous carbonaceous materials are rather limited, most of the works being devoted to graphite fluorides, which are already recognized as performing materials in industrial applications as electrodes for primary batteries and solid lubricants [21][22][23]. The fluorination mechanism of graphite at high and low temperatures and in the presence of catalysts is now well established to depend mainly on the graphitization level.…”

Progress of synthesizing methods and properties of fluorinated carbon nanotubes

“…Covalent modification is the one of attaching different functional groups onto the surface of CNTs by covalent bonds, which is the most common method in use nowadays [23]. The fluorination of CNTs belongs to the covalent modification, which can amend the surface properties of CNTs greatly, as well as infiltration, adhesion, stability, conduc- tivity, biological compatibility, etc [24]. Herein, we generalize the various methods of synthesizing F-CNTs in recent years.…”

“…Covalent and ionic C-F bonds are usually both in the F-CNTs synthesized by plasma treatment and the portion of ionic C-F bonds increases with the increase of the flow rate and treatment time, due to the irregular structures or active points on the surface of CNTs caused by the high flow rate plasma gas in a long time [46,47]. Furthermore, ionic C-F bonds can keep the excellent conductivity of CNTs, whereas covalent C-F bonds decrease the conductivity of CNTs drastically and lead F-CNTs to be insulating [24,54].…”